Why are my some of my muscles bigger on one side than the other?

Question

Ex. Right bicep bigger than left. Left pec bigger than right. Left upper abs bigger than right. Right lower ab bigger than left.

Answer 1

You are not alone...it is that way for all of us. It is just the way it is. All of us have one hand that is bigger than the other, one foot bigger than the other, one muscle bigger than the other corresponding muscle. It is totally normal.

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http://www.xomba.com/tell_me_why_why_is_my_one_boob_bigger_than_the_other